You can also find hot or cold packs as needed. If you want to save the water get about three bucket w/lids. You can divide the rock between two and put your sand in the other, divide the water between buckets. The hermits and snails should be fine in the buckets. Fish I would place in appropriate sized bags, the zip locs are fine but may check with your LFS for some bags if needed. Some O2 for the fish would be nice but not totally needed for the short move. Put the fish in a cooler or something that will keep the temp even during the trip. Don't open the box or cooler and look at them, it lets the heat out. Get to your new place, put in your base rock, add your sand, put in your rock and plug things in and get them circulating. Make sure your temp is up and open up the bags and float your fish add some water to the bags until they are acclimated and let them go. Temperatures are pretty reasonable right now. You may also be able to purchase a fish box or two from your local FS if you are worried about temp fluctuations. I think you should be fine as long as nothing gets to cold. Slow gradual changes nothing to quick, lesson the shock. Good Luck.
